A flail is a weapon consisting of one or more striking heads attached to a handle by flexible rope, strap, hinge or chain connectors that can be wielded in combat to produce powerful concussive impact
Spiked versions of long-handled peasant flails. From Paulus Hector Mair's combat manual Arte De Athletica
16th century peasant rebels
Modern representation of a one-handed flail
Detail from Battle between Heraclius and Chosroes, painted by Piero della Francesca circa 1452, showing a short flail with three spherical striking ends
A meteor hammer, often referred to simply as meteor is an ancient Chinese weapon, consisting at its most basic level of two weights connected by a rope or chain. One of the flexible or "soft" weapons,
Flail (weapon)
…Threshal Meteor hammer Observations on flail use in European history…
A double-headed meteor hammer
Various meteor hammers, Yuan dynasty
Meteor hammers, Ming dynasty